Through its time of success it began to grow further into Treasure Island after Congress passed the Indian Gaming Regulatory Act of 1988. This building started as a 30,000-square-foot space that seated 1,400 people. Treasure Island Resort & Casino began as a bingo hall in 1984 called Island Bingo. Employing nearly 1,500 people, Treasure Island Resort & Casino is the largest employer in Goodhue County. Additional amenities to the property include a 788-room hotel (2nd-largest in Minnesota), the Treasure Island Amphitheater (outdoors - 16,000 capacity), the Island Event Center (indoors - 2,800 capacity), a marina, RV-park, a cruise yacht, an indoor waterpark, a spa, a 24-lane bowling center and arcade, and several restaurants. The casino’s gaming options include slot machines video roulette, blackjack and keno live dealer blackjack, poker and other table games and bingo.

It is the only casino resort in southern Minnesota located on the Mississippi River. Treasure Island Resort & Casino is a tribal gaming facility owned and operated by the Prairie Island Indian Community (PIIC) in Welch, MN – Goodhue County. Treasure Island Amphitheater (16,000 capacity), Island Event Center (2,800 capacity), The Lagoon (indoor waterpark), Wave Spa, Spirit of the Water, Marina, RV Park, Island Xtreme Bowl, Cyber Quest arcadeĤ4☃7′56″N 92☃9′00″W / 44.63215°N 92.64992°W / 44.63215 -92.64992

For the Las Vegas casino, see Treasure Island Hotel and Casino. This article is about a Native American casino in Minnesota.

The island resort and casino